24A.—(1) The common law defence of reasonable chastisement is abolished.

(2) Subsection (1) shall not apply in respect of proceedings brought against a person for an offence consisting in whole or in part of any act done by the person before the commencement of section 28 of the Children First Act 2015, whether those proceedings were brought before, on or after such commencement.

(3) This section shall not affect the operation of section 24.]